a,
input {
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  -webkit-tap-highlight-color: transparent;
  /* For some Androids,个人感觉是低版本的安卓，4.0以下 */
  -moz-user-focus: none;
}
html,
body {
  padding: 0;
  margin: 0;
}
body {
  font-family: 'PingFang SC', '冬青黑体', '微软雅黑', 'Microsoft YaHei', 'Helvetica Neue', 'Helvetica', 'STHeitiSC-Light', 'Arial', sans-serif;
  margin-bottom: 100px;
}
html {
  position: relative;
  background-size: cover;
  min-height: 100%;
}
.cover {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  top: 0;
  background-color: rgba(0, 0, 0, 0.1);
  z-index: 100;
}
#container {
  max-width: 768px;
  margin: 0 auto;
}
#container > .title {
  font-size: 1.5rem;
  font-weight: 500;
  padding: 2rem 1rem;
}
#container > .comments {
  font-weight: 500;
}
#container > .comments .comment {
  margin: 1.5rem 1rem;
}
#container > .comments .comment .meta {
  display: box;
  /* OLD - Android 4.4- */
  display: -webkit-box;
  /* OLD - iOS 6-, Safari 3.1-6 */
  display: -moz-box;
  /* OLD - Firefox 19- (buggy but mostly works) */
  display: -ms-flexbox;
  /* TWEENER - IE 10 */
  display: -webkit-flex;
  /* NEW - Chrome */
  display: flex;
  /* NEW, Spec - Opera 12.1, Firefox 20+ */
  /* 09版 */
  -webkit-box-orient: horizontal;
  -moz-box-orient: horizontal;
  box-orient: horizontal;
  /* 12版 */
  -webkit-flex-direction: row;
  -moz-flex-direction: row;
  -ms-flex-direction: row;
  -o-flex-direction: row;
  flex-direction: row;
  /* 09版 */
  -webkit-box-align: center;
  /* 12版 */
  -webkit-align-items: center;
  -moz-align-items: center;
  -ms-align-items: center;
  -o-align-items: center;
  align-items: center;
}
#container > .comments .comment .meta .avatar {
  width: 40px;
  display: inline-block;
  border-radius: 50%;
}
#container > .comments .comment .meta .name {
  display: inline-block;
  margin-left: 1rem;
  flex: 1;
}
#container > .comments .comment .meta .time {
  display: inline-block;
  margin: 0 .5rem;
}
#container > .comments .comment .content {
  margin: 1rem 0 0;
}
#container > .footer {
  max-width: 768px;
  position: fixed;
  left: 50%;
  -webkit-transform: translateX(-50%);
  -moz-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  -o-transform: translateX(-50%);
  transform: translateX(-50%);
  bottom: 0;
  width: 100%;
  background: rgba(0, 0, 0, 0.5);
  color: #fff;
  display: box;
  /* OLD - Android 4.4- */
  display: -webkit-box;
  /* OLD - iOS 6-, Safari 3.1-6 */
  display: -moz-box;
  /* OLD - Firefox 19- (buggy but mostly works) */
  display: -ms-flexbox;
  /* TWEENER - IE 10 */
  display: -webkit-flex;
  /* NEW - Chrome */
  display: flex;
  /* NEW, Spec - Opera 12.1, Firefox 20+ */
  /* 09版 */
  -webkit-box-align: center;
  /* 12版 */
  -webkit-align-items: center;
  -moz-align-items: center;
  -ms-align-items: center;
  -o-align-items: center;
  align-items: center;
  /* 09版 */
  -webkit-box-pack: center;
  /* 12版 */
  -webkit-justify-content: center;
  -moz-justify-content: center;
  -ms-justify-content: center;
  -o-justify-content: center;
  justify-content: center;
}
#container > .footer .desc {
  -webkit-box-flex: 1;
  /* OLD - iOS 6-, Safari 3.1-6 */
  -moz-box-flex: 1;
  /* OLD - Firefox 19- */
  -webkit-flex: 1;
  /* Chrome */
  -ms-flex: 1;
  /* IE 10 */
  flex: 1;
}
#container > .footer .desc h4 {
  margin: 0;
  font-size: .95em;
  font-weight: 400;
  line-height: 1.5em;
}
#container > .footer .logo {
  width: 3rem;
  display: inline-block;
  margin: 1rem;
}
#container > .footer .download {
  margin: 0 1rem;
  line-height: 0;
}
@media (min-width: 768px) {
  html,
  body {
    font-size: 20px;
  }
  body {
    margin-bottom: 120px;
  }
}
@media (min-width: 1000px) {
  html,
  body {
    font-size: 22px;
  }
  body {
    margin-bottom: 140px;
  }
}
@media (max-width: 500px) {
  html,
  body {
    font-size: 15px;
  }
}
@media (max-width: 450px) {
  html,
  body {
    font-size: 14px;
  }
}
@media (max-width: 400px) {
  html,
  body {
    font-size: 13px;
  }
}
@media (max-width: 350px) {
  html,
  body {
    font-size: 12px;
  }
}
